The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 15, 1981

Filed:

Jan. 04, 1980
Applicant:
Inventor:

Bruce L Graham, Nashville, TN (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09B / ;
U.S. Cl.
CPC ...
84474 ; 8447 / ;
Abstract

A Harmonic Conversion Wheel is disclosed comprising a circular disk, a faceplate and attaching means joined together along a common axis which is the centerpoint of said elements. By rotation of the disk about said axis and proper registration of said disk with the windows positioned in the faceplate, an artist, composer, student of music, performer or arranger has at their disposal a multitude of information regarding the law of intervals and similar musical relationships concerning tonics, chords, scales and notes within a scale. Thus, a person without analogous skills can perform, rearrange, transpose or learn music to the best of his ability while developing his own caliber of musical knowledge and expertise.


Find Patent Forward Citations

Graham, Bruce. (1981). Harmonic conversion wheel (U.S. Patent No. 4305323). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4305323

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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